Auxiliary air valve or mixer for internal-combustion engines.



G. GOTTSGHALK.

AUXILIARY AIR VALVE 0R MIXER FOR INTERNAL COMBUSTION ENGINES;

APPLICATION FILED OGT.30, 1913.

Patented May 19, 1914.

/6 WITNESSES UNITED STATES PATENT OFFICE."

GEORGE GOTISGHALK, OFLEWISTOWN, PENNSYLVANIA.

Specification of Letters Patent.

Application filed October 30, 1913.

Patented May 19, 1914. Serial No. 798,187.

To all whom it may concern Be it known that I, GEORGE Gor'rsoHAnK, a citizen of the United States, residing at Lewistown, county of Mifflin, State of Pennsylvania, have invented a new and useful Auxiliary Air Valve or Mixer for Internal-Combustion Engines, of which the following is a specification.

My invention relates to an improvement in an auxiliary air mixer or valve, by means of which air is admitted above the throttle valve of the carbureter to be mixed with the fuel from the carburetor in its passage to the engine, and which consists of .a bodyportion having a plurality of ports or openings and a valve 0 ntrolling the orts, with means for operati g said valve, w ereby the proper amount of air is admitted.

It further consists of means for operating the valve of the auxiliary air mixer in suitable relation with respect to the throttle valve, in order that more or lessair will be admitted, depending upon the position of said throttle valve.

It further consists of other novel features of construction, all as will be hereinafter fully set forth.

For the purpose of illustrating my invention, I have shown in the accompanying drawin s one form thereof which is at pres cut pro erred by me, since the same has been found in practice to. give, satisfactory and reliable results, although it is. to be understood that the various instrumentalities of which .my invention consists can be variously arranged. and organized and that my invention is not limited to the precise ar rangement and organization of these instrumentalities as herein shown and described.

Figure 1 is a side elevation, partly in section, of a carbureter with my invention applied thereto and showing a ortion'of an intake pipe for the engine. Fig. 2 is a side elevation of certain of the parts seen in Fig. 1 and at a right angle thereto. Fig. 3 is a plan view of a valve and its adjuncts. Fig. 4.- is a vertical section on line w-a: in

Fi in ig. 3. Fig. 6 is a view of the valve seen in Fig. 5 Wltl'l'ltS plug'in a difi'erent position from that seenin Fig. 5. Figs. 7 and 8 are plan views of certain detached portions of the valve and its adjuncts seen in Fig. '3.

Similar numerals ofl.-reference indicate corresponding part 1n ti res,

Referring to the drawingst My inven- 5 is a view of the valve seen tion is desi ned to allow air to be admitted above the throttle valve of the carburetor, preferably into the inlet pipe leading to the engine and to control the auxiliary valve, in order that a suitable amount of air will be admitted, depending upon the position of the throttle valve from the carbureter at increasing the power and so the speed of the engine, as well as economizing the fuel.

The air in my device is admitted by means of a plurality of small openings or holes so that the air will be injected as a spray or in a plurality of jets, in order that the same will be thoroughly mixed with the fuel, and I preferably form the openings or holes at angles to each other, in order that these jets or sprays will cross each other, thus increasing the action of mixing.

throttle valve 2 having a. suitable stem 3, to which is connected, in any suitable manner, a lever 45', by means of which the valve may be controlled, as usual, according to requirements.

5 designates the lower'portion of an intake or induction pipe that leads from said carburetor 1 to the engine (not shown), in the usual manner. Interposed between the carburetor 1 and the intake pipe 5 is the trolled in order to directair into the intake pipe above the throttle valve to be mixed with the fuel from the carburet-er.

The automatic air mixer or valve consists of a body-portion formed of upper and lower members 7 and 8,respectively, which being provided with an opening 9 and 10 respectively, which, when the mixer is secured in position, are in alinement with the openings of the carbureter 1 and the intake pipe 5. The member 7, in its abutting face, is provided with an annular groove 11, with which communicates the diverging grooves 12, which join at the outer portion of the member 7, as best understood from Fig. 7. The other member 8, as here shown, carries a valve casing 13, in which are the two V-s'haped openings or'ports 14 and 15, formed at suitable points therein. In its abutting face, the member 8 is provided with the annular oove 16 and with the diverging grooves 1? which join at the outer portion of the vmem-berfso that when the two members 7 and 8 -are' superimposed, the anthe time the charge of gas is admitted, thus 1 designates a carbureter provided with a automatic air mixer or valve 6 which is con-" are superimposed upon each other and each nular grooves 11 and 16 form an annular passage, while the diverging grooves 12 and 17 form communicating passages between the V-shaped opening 14 of the valve casing 13 and the said annular passage formed by the grooves 11 and 16. Controlling the ports 14 and 15 of the valve casmg 13 is the valve or valve plug 18, which is provided with a suitable V-shaped port 19, which, by proper operation of the valve 18, is caused to register with the port-s 14 and 15 of the casing to admit air from the exterior of said casing to the annular passage of the members 7 and 8.

20 and 21 designate ports or openings leading from the annular passage of the members to the main openin of the mixer formed by the openings 9 an 10, said ports being formed at difierent angles or extending in suitable different or varying directions, so that the air will be discharged therefrom in a spray or jets, which cross each other, as best seen in Fig. 1, so as to thoroughly mix with the fuel passing from the carbureter 1 to the engine.

I desire to suitably operate the valve 18 with regard to the operation of the throttle valve 2, in order that a greater or less supply of air is admitted,-depending upon the position of the said throttle valve, and for this purpose, I connect with the valve 18, a lever 22 and to which one end of a link 23 is secured, the opposite end being pivotally connected with the lever 4 of the throttle valve 2, by which means, it will be understood, when the throttle 2 is operated, the valve 18 will be correspondingly operated to admit the desired amount of air. The V- shaped ports and openings in the valve and valve casing allow for a fine adjustment of the air and insure that the proper amount is admitted, depending upon what is required. The auxiliary air valve is secured in position in any desired manner, and I have here shown the openings or slots 24 and 25, respectively, to receive suitable bolts 26 that retain the air valve in position by engagement with a suitable portion of the intake pipe 5 and the carbureter 1. I also preferably desire to connect the members and 8 together by means of bolts 27 or other suitable means.

The operation of the device will be readily apparent. It will be understood that when the actuating lever or rod for the throttle valve is operated, it will automatically operate the valve plug 18, causing the V-shaped port 19 therein to be brought in suitable communication with the V-shaped ports or openings 14 and 15 of the valve casing 13, and assuming the parts to be in the position seen in Fig. 1, and the engine to be inoperation, the gas from the carbureter 1 is drawn into the inlet pi e 5 on its way to the engine and this flow 0 gas draws air from the outside through the said ports 14 and 15 of the valve casing 13, into the annular passage of the mixer formed by the annular grooves 11 and 16, since it will be understood that the valve has been rotated or moved to the proper position to admit the air to pass into said passage, and by reason of the ports or openings between the said annular passage and the opening ofthe body-portion, which latter opening is in line with the inlet pipe '5, the air will pass into said inlet pipe and be thoroughly mixed with the fuel in its passage through said inlet pipe 5 at a point above the throttle valve 2, by reason of which the quality of the gas is improved and the said fuel is suit ably vaporized and the proper amount of oxygen is supplied. As the throttle valve is operated to increase or decrease the amount of the fuel to be discharged to the engine, the valve plug 18 will be likewise operated to increase or reduce the amount of air, by varying the position of the V- shaped port in the valve with respect to the V-shaped openings in the valve casing, as will be evident, and from which it will be understood that the amount of air admitted is automatically controlled, depending upon the position of the throttle valve 2. The V- shaped ports or openings permit of a fine adjustment of this air, as will be evident.

It will now be apparent that I have devised anovel and useful construction of an auxiliary air valve or mixer for carbureter, which embodies the features of advantage enumerated as desirable in the statement if the invention and the above description, and while I have, in the present instance, shown and described a preferred embodiment thereof, which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope ofthe invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent, is

1. In a device of the character stated, an auxiliary air valve adapted to be placed .between a carbureter and an engine, comprising a casing having an opening and a passage communicating with the exterior of the casing, and a series of radial orts extending at varying angles and leading from said passage to said opening to discharge around the same, and a' valve controlling the communication from the exterior of the casing to said passage.

2. In a device of the character stated, an auxiliary valve-casing adapted to be placed bet-ween a carbureter and an engine and formed with an opening and with an annular passage having radial ports at varying angles into said opening and a branched passage communicating with said annular passage, a- Vah-e-casing having a port communicating with said branched passage and an opposed portopening to its exterior, and a valve in said casing and having a bodyportion formed with a transverse port V- shaped in cross-section and adapted to register with the ports in said casin 3. In a device of the character stated, acarbureter, a throttle-valve in the outlet of the same, an engine intake-pipe registering with said outlet, an auxiliary valve-casing connecting the outletof the carbureter and the intake-pipe and formed with an annular passage surrounding and communicating with the opening of said auxiliary valvecasing through ports at Varying angles and communicating with the exterior atmosphere, a valve controlling such communication, and means'connected to said valve and to said throttle-valve to simultaneously open and close the same.

v GEORGE GOTTSCHALK. \Vitnesse's RICHARD SHATZER, OBED O. ORNER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

